PCI-Express 4.0 Performance Scaling with Radeon RX 5700 XT @ TechPowerUp
 

PCI-Express 4.0 has been one of the main new features prominently brandished on the product boxes of both the 3rd generation Ryzen desktop processors, and Radeon RX 5700 series graphics cards. We examine the performance impact of running these cards on older generations of PCIe.

https://www.techpowerup.com/review/p...n-rx-5700-xt//